266224224820 has 24 divisors (see below), whose sum is σ = 577105417728. Its totient is φ = 103054538400.

The previous prime is 266224224809. The next prime is 266224224859. The reversal of 266224224820 is 28422422662.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214696336 + ... + 214697575.

It is an arithmetic number, because the mean of its divisors is an integer number (24046059072).

Almost surely, 2^266224224820 is an apocalyptic number.

266224224820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266224224820 is an abundant number, since it is smaller than the sum of its proper divisors (310881192908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266224224820 is a wasteful number, since it uses less digits than its factorization.

266224224820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429393951 (or 429393949 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 266224224820 in words is "two hundred sixty-six billion, two hundred twenty-four million, two hundred twenty-four thousand, eight hundred twenty".